Novel antirust durable gate valve

Abstract

The utility model discloses a novel rustproof durable gate valve, which comprises a valve body, a valve rod assembly, a valve cover and a valve core, the valve core is rotatably arranged in the valve body, the valve rod assembly is inserted at the upper end of the valve core, the valve cover is sleeved on the valve rod assembly, the valve cover is fixed with the valve body through a fixing bolt, and the upper end of the valve cover is also provided with a positioning sleeve; the filtering mechanism is mounted on the left side of the valve body and used for filtering the flowing-in medium fluid; the gate valve has the advantages that the structure is reasonable, the working state of the gate valve can be conveniently judged, meanwhile, fluid media can be filtered, and the use requirements can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve equipment, in particular to a new type of rust-proof and durable gate valve. Background Technique

[0002] A gate valve is a closing member, a gate plate. The moving direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled. During the use of the gate valve, sundries will be carried in the fluid. Sometimes the sundries will adhere to the inner wall of the gate valve, resulting in corrosion of the gate valve, causing the gate valve to rust and reducing the service life of the gate valve.

[0003] For example, the utility model patent with the authorization publication number CN218863301U discloses a rust-proof and durable gate valve. While this device can increase the wear resistance effect, an anti-corrosion coating is sprayed inside it, which can improve the anti-corrosion property inside the valve body, thereby increasing the service life of this gate valve and enhancing the durability.

[0004] However, when this device is specifically used, the valve core is driven to rotate by a turning handle, which is inconvenient to judge the working state of the gate valve. And there may be impurities in the fluid medium, and this device cannot filter the fluid medium inside the gate valve, and cannot well meet the use requirements. Content of the Utility Model

[0005] The purpose of the utility model is to provide a new type of rust-proof and durable gate valve to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new type of rust-proof and durable gate valve, comprising: a valve body, a valve rod assembly, a valve cover and a valve core. The valve core is rotatably installed inside the valve body. The upper end of the valve core is inserted with the valve rod assembly. The valve cover is sleeved on the valve rod assembly. The valve cover is fixed to the valve body by fixing bolts. A positioning sleeve is also provided at the upper end of the valve cover; a filtering mechanism is installed on the left side of the valve body for filtering the incoming medium fluid; rust-proof paint is sprayed on the surfaces of the valve body, the valve rod assembly, the valve cover, the valve core and the filtering mechanism.

[0008] As a preferred solution, the filtering mechanism includes an installation groove opened on the left side of the valve body. A filtering frame is inserted into the installation groove. A pull handle is also installed on the left side of the filtering frame.

[0009] As a preferred solution, multiple groups of limiting blocks are distributed and installed in the installation groove. Corresponding limiting grooves are opened on the filtering frame. The limiting blocks are inserted into the corresponding limiting grooves.

[0010] As a preferred solution, the valve stem assembly includes a valve stem body, which is installed on the valve core through a connection assembly. The upper end of the valve stem body penetrates through the positioning sleeve. A connection threaded column is fixed at the upper end of the valve stem body. A turning handle is sleeved on the connection threaded column. A connection nut is also screwed on the upper end of the connection threaded column. A limiting assembly is arranged between the turning handle and the positioning sleeve.

[0011] As a preferred solution, the connection assembly includes a connection plug installed at the lower end of the valve stem body. A connection slot is opened at the corresponding position at the upper end of the valve core. The connection plug is inserted into the connection slot. The connection plug is hexagonal prism-shaped and is adapted to the connection slot. A spring is also sleeved on the valve stem body. The two ends of the spring are respectively in contact connection with the upper end of the connection plug and the inner top wall of the positioning sleeve.

[0012] As a preferred solution, the limiting assembly includes an annular positioning groove opened at the upper end of the positioning sleeve. A positioning block is installed at the corresponding position at the lower end of the turning handle. The positioning block is inserted into the positioning groove.

[0013] As a preferred solution, the rotation angle of the turning handle is 0 - 90°.

[0014] As a preferred solution, a first sealing ring is arranged between the valve cover and the valve body, and a second sealing ring is arranged between the valve cover and the valve core.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: the fluid medium can be filtered through the filter frame, and the impurities in the fluid medium can be effectively reduced;

[0016] In the initial position, the turning handle is not rotated. At this time, the turning handle is parallel to the valve body, and the gate valve is in the open state. When the turning handle rotates 90 degrees, the turning handle is perpendicular to the valve body. At this time, the gate valve is in the closed state. Therefore, by observing the positional relationship between the turning handle and the valve body, the working state of the gate valve can be judged, so as to better meet the use requirements. The structure of the present utility model is reasonable, which is convenient for judging the working state of the gate valve, and at the same time, the fluid medium can be filtered, and it can better meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall three-dimensional structure schematic diagram of a new type of rust-proof and durable gate valve;

[0018] Figure 2 is an overall sectional structure schematic diagram of a new type of rust-proof and durable gate valve;

[0019] Figure 3 is a three-dimensional structure schematic diagram of a new type of rust-proof and durable gate valve after hiding the filtering mechanism;

[0020] Figure 4Schematic three-dimensional structure diagram of the spool position of a new type of rust-proof and durable gate valve;

[0021] Figure 5 Schematic three-dimensional structure diagram of the bonnet position of a new type of rust-proof and durable gate valve;

[0022] Figure 6 Exploded structure diagram of the bonnet position of a new type of rust-proof and durable gate valve.

[0023] In the figure: 1 - valve body, 11 - bonnet, 111 - positioning sleeve, 112 - positioning groove, 12 - fixing bolt, 13 - sealing ring one, 14 - sealing ring two, 15 - spool, 151 - connecting slot, 2 - valve stem assembly, 21 - turning handle, 211 - positioning block, 22 - valve stem body, 221 - connecting plug, 222 - connecting threaded column, 223 - connecting nut, 23 - spring, 3 - filtering mechanism, 31 - filtering frame, 32 - limiting groove, 33 - pull handle, 34 - limiting block, 35 - installation groove. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment: Please refer to Figures 1 to 6 , a new type of rust-proof and durable gate valve, including: valve body 1, valve stem assembly 2, bonnet 11 and spool 15. The spool 15 is rotatably installed in the valve body 1. The upper end of the spool 15 is inserted with the valve stem assembly 2. The bonnet 11 is sleeved on the valve stem assembly 2. The bonnet 11 is fixed to the valve body 1 through the fixing bolt 12. A positioning sleeve 111 is also provided at the upper end of the bonnet 11; a filtering mechanism 3 is installed on the left side of the valve body 1 for filtering the incoming medium fluid; the surfaces of the valve body 1, valve stem assembly 2, bonnet 11, spool 15 and filtering mechanism 3 are all sprayed with rust-proof paint. By setting the rust-proof paint, the rust-proof performance of the gate valve can be effectively improved, thereby extending its service life.

[0026] Working principle of the utility model: In specific use, first, the valve core 15 is installed in the valve body 1. Subsequently, the valve rod assembly 2 is installed on the valve core 15. Then, the valve cover 11 is sleeved on the valve rod assembly 2. Subsequently, the valve cover 11 and the valve body 1 are fixed by the fixing bolts 12. Then, the filtering mechanism 3 is installed at the fluid medium inlet position on the left side of the valve body 1. Through the filtering mechanism 3, impurities in the fluid medium can be filtered. The filtering mechanism 3 inserted in the valve body 1 is convenient for disassembly and is easy to clean the filtering mechanism 3, which can better meet the use requirements.

[0027] As a further solution, the filtering mechanism 3 includes an installation groove 35 opened on the left side of the valve body 1. A filter frame 31 is inserted in the installation groove 35. A pull handle 33 is further installed on the left side of the filter frame 31. A plurality of limiting blocks 34 are distributed and installed in the installation groove 35. Limiting grooves 32 are opened at corresponding positions on the filter frame 31. The limiting blocks 34 are inserted in the corresponding limiting grooves 32. In this embodiment, the pull handle 33 is in a "cross" shape and is flush with the left side of the valve body 1. The arranged limiting grooves 32 and the limiting blocks 34 can effectively prevent the filter frame 31 from rotating.

[0028] The working principle of the filtering mechanism 3 is: When the fluid medium enters from the left side of the valve body, the fluid medium can be filtered through the filter frame 31, which can effectively reduce impurities in the fluid medium, so as to better meet the use requirements.

[0029] As a further solution, the valve stem assembly 2 includes a valve stem body 22. The valve stem body 22 is installed on the valve core 15 through a connecting assembly. The upper end of the valve stem body 22 penetrates through the positioning sleeve 111. A connecting threaded column 222 is fixed to the upper end of the valve stem body 22. A rotating handle 21 is sleeved on the connecting threaded column 222. A connecting nut 223 is also screwed onto the upper end of the connecting threaded column 222. A limiting assembly is provided between the rotating handle 21 and the positioning sleeve 111. The connecting assembly includes a connecting plug 221 installed at the lower end of the valve stem body 22. A connecting slot 151 is provided at the corresponding position at the upper end of the valve core 15. The connecting plug 221 is inserted into the connecting slot 151. The connecting plug 221 is hexagonal prism-shaped and is adapted to the connecting slot 151. A spring 23 is also sleeved on the valve stem body 22. The two ends of the spring 23 are respectively in contact connection with the upper end of the connecting plug 221 and the inner top wall of the positioning sleeve 111. The limiting assembly includes an annular positioning groove 112 provided at the upper end of the positioning sleeve 111. A positioning block 211 is installed at the corresponding position at the lower end of the rotating handle 21. The positioning block 211 is inserted into the positioning groove 112. The rotation angle of the rotating handle 21 is 0 - 90°. In this embodiment, a positioning piece is provided at the lower half of the connecting threaded column 222. The positioning piece is inserted into the notch on the rotating handle 21, which can effectively prevent the rotating handle 21 from rotating relative to the valve stem body 22 and facilitate better driving of the valve core 15 to rotate.

[0030] During specific installation, first insert the connecting plug 221 at the lower end of the valve stem body 22 into the connecting slot 151. Subsequently, sleeve the spring 23 onto the valve stem body 22. Then, sleeve the valve cover 11 onto the valve stem body 22. Then, fix the valve cover 11 to the valve body 1 through the fixing bolt 12. At this time, the spring 23 is compressed to ensure that the connecting plug 221 is inserted into the connecting slot 151. Subsequently, insert the rotating handle 21 onto the connecting threaded column 222 at the upper end of the valve stem body 22. The positioning piece on the connecting threaded column 222 is inserted into the corresponding notch, which can effectively prevent the rotating handle 21 from rotating relative to the valve stem body 11. At this time, the positioning block 211 at the lower end of the rotating handle 21 is inserted into the positioning groove 122. Then, screw the connecting nut 223 onto the upper end of the connecting threaded column 222 to complete the installation work.

[0031] In the initial position, the rotating handle 21 is not rotated. At this time, the rotating handle 21 is parallel to the valve body 1 (as Figure 1 shown). At this time, the gate valve is in the open state. When the rotating handle 21 is rotated 90 degrees, the rotating handle 21 is perpendicular to the valve body 1. At this time, the gate valve is in the closed state. Therefore, by observing the positional relationship between the rotating handle 21 and the valve body 1, the working state of the gate valve can be judged, which can better meet the usage requirements.

[0032] In order to improve the sealing performance of the gate valve, a first sealing ring 13 is provided between the valve cover 11 and the valve body 1, and a second sealing ring 14 is provided between the valve cover 11 and the valve core 15.

[0033] In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationship of each component or element of the present utility model, and do not specifically refer to any component or element in the present utility model. It should not be construed as a limitation to the present utility model.

Claims

1. A new type of rust-proof and durable gate valve, characterized in that: include: A valve body (1), a valve stem assembly (2), a valve cover (11) and a valve core (15), wherein the valve core (15) is rotatably mounted in the valve body (1), the valve stem assembly (2) is inserted into the upper end of the valve core (15), the valve cover (11) is sleeved on the valve stem assembly (2), the valve cover (11) is fixed to the valve body (1) by fixing bolts (12), and a positioning sleeve (111) is also provided at the upper end of the valve cover (11); The filter mechanism (3) is installed on the left side of the valve body (1) and is used to filter the inflowing medium fluid; The surfaces of the valve body (1), the valve stem assembly (2), the valve cover (11), the valve core (15) and the filter mechanism (3) are all sprayed with anti-rust paint; The valve stem assembly (2) comprises a valve stem body (22), the valve stem body (22) is mounted on the valve core (15) through a connecting assembly, the upper end of the valve stem body (22) passes through a positioning sleeve (111), a connecting threaded column (222) is fixed to the upper end of the valve stem body (22), a rotating handle (21) is mounted on the connecting threaded column (222), a connecting nut (223) is also threadedly screwed on the upper end of the connecting threaded column (222), and a limiting assembly is arranged between the rotating handle (21) and the positioning sleeve (111); The connecting assembly comprises a connecting block (221) installed at the lower end of the valve stem body (22), a connecting slot (151) is provided at a corresponding position on the upper end of the valve core (15), the connecting block (221) is inserted into the connecting slot (151), the connecting block (221) is in the shape of a hexagonal prism, the connecting block (221) is adapted to the connecting slot (151), and a spring (23) is also mounted on the valve stem body (22), the two ends of the spring (23) are respectively in contact with the upper end of the connecting block (221) and the inner top wall of the positioning sleeve (111); The limiting assembly comprises an annular positioning groove (112) formed at the upper end of the positioning sleeve (111), a positioning block (211) is installed at a corresponding position at the lower end of the rotating handle (21), and the positioning block (211) is inserted into the positioning groove (112); The rotation angle of the rotating handle (21) is 0-90°.

2. A novel rust-proof and durable gate valve according to claim 1, characterized in that: The filter mechanism (3) comprises a mounting groove (35) opened on the left side of the valve body (1), a filter frame (31) is inserted into the mounting groove (35), and a handle (33) is also installed on the left side of the filter frame (31).

3. A novel rust-proof and durable gate valve according to claim 2, characterized in that: A plurality of groups of limit blocks (34) are distributed and installed in the installation groove (35), and limit grooves (32) are provided at corresponding positions on the filter frame (31), and the limit blocks (34) are inserted into the corresponding limit grooves (32).

4. A novel rust-proof and durable gate valve according to claim 3, characterized in that: A sealing ring 1 (13) is provided between the valve cover (11) and the valve body (1), and a sealing ring 2 (14) is provided between the valve cover (11) and the valve core (15).

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